開かい催さい中ちゅう

noun

in session; in progress; under way; open

Used for events, meetings, exhibitions, or sessions that are currently being held. Often seen in signs or announcements.

• 会かい議ぎはただいま開かい催さい中ちゅうです。

  The meeting is currently in session.

• 美び術じゅつ展てんは来らい月げつまで開かい催さい中ちゅうです。

  The art exhibition is open until next month.